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Belzona® Renews Black Water Tank



Marine (MRNE)



Ships and Offshore Structures (SOS)


Customer Location:

Fort Lauderdale, Florida


Application Date:

July 2005


Application Situation:

Black water tank in 80 ft Aluminum motor yacht.



Severe pitting caused by H2S attack of aluminum walls, top and supports causing leakage of sewage to bilge.



Belzona® 1121 (Super XL-Metal)

Belzona® 5811 (Immersion Grade)



Marine aluminum


Application Method:

Application was carried out in accordance with Belzona Know-How System Leaflet SOS-5. Doubler plates bonded to 4 sides and supports faired with Belzona® 1121. All surfaces coated with Belzona® 5811.


Belzona Facts:

36kgs of Belzona® 1121 8 liters of Belzona® 5811 and three work days restored and protected tank from future attack. Welding would have taken weeks and coating would still have been needed.


Photographs Description

  1. My Absolute at Cable Marine, Ft. Lauderdale, Florida
  2. Severe pitting wastage of tank walls and supports
  3. Doubler plates and Belzona® 1121 applied
  4. Final protection with Belzona® 5811 awaiting top
Case study pic one


 Case study pic two


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 Case study pic four


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